• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.690-693
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• 2022

In this study, we used wine data to perform correlation analysis on factors that affect wine quality, and predicted wine quality standards based on the results. The dataset used in this study used data from 1599 red wines and 4898 white wines produced in Vinho verde, Portugal, for a total of 6497. The variable items are 12 kinds of component variables that represent wine components through physical and chemical analysis tests, a total of 1599 observations, and a total of one of the representative wines of the three major wine producing regions in the world (France, Italy, Spain). Added 3 pieces. Analysis was made by applying national climate change data.

• Nuclear Engineering and Technology
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• v.55 no.5
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• pp.1878-1884
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• 2023

To lay a solid basis for prosperity and competitiveness, countries should achieve balance in the three fundamental aspects: energy availability, energy affordability and ecological balance. Nuclear energy has attracted international interest as one of the most crucial environmental quality strategies. The objective of this study is to analyze the non-linear link between nuclear energy and environmental quality in the top-10 nuclear energy consumer countries (USA, China, Russia, France, Canada, Spain, Sweden, South Korea, Ukraine, and Germany). Earlier research employed panel data methodologies to examine the linkage between nuclear energy and the environment, despite the fact that many nations did not independently demonstrate such a correlation. On the alternative, this study uses a novel approach known as 'Quantile-on-Quantile,' which allows for the analysis of time-series dependence in each country by giving universal yet country-specific insights into the relationship between the variables. Estimates show that the consumption of nuclear energy improves environmental quality by lowering ecological footprint in the majority of the nations studied at certain quantiles of data. Moreover, the data demonstrate that the degree of asymmetries between our variables changes by nation, emphasizing the importance of policymakers exercising caution when adopting nuclear energy and environmental quality regulations.

• Iberoamérica
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• v.12 no.1
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• pp.241-265
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• 2010

The main purpose of this study is to reveal the historical origins of Latin American economic underdevelopment, by answering two research questions; 1)'Why is Latin America underdeveloped?' and 2)'How has colonial experience impacted on the economic growth in Latin America?' First, this essay analyzes long-term tendency of growth domestic product(GDP) per capita data. The data verify that current underdevelopment of Latin American economy is the result of economic stagnation during the eighteenth and nineteenth centuries, when Latin America suffered political and economic instability before and after the independence from Spain and Portugal. It elucidates that colonial experience affected on the economic growth in Latin America. Second, this essay reviews key independent variables of the relationship between colonial experience and economic growth in Latin America. To do so, the study categorizes extant literature into two groups according to the type of its independent variables: 1)internal factor and 2)external factor. Finally, the essay surveys the role of institutions in Latin American economic growth and development. The survey confirms that the importance of institutions in the study of Latin American economic history. In addition, the essay suggests some tasks for further research in Latin American economic history; 1)the construction of basic economic data, 2)the substantialization of the role and characteristics of institutions, and 3)the expansion of research on institutions which overcomes ideological rigidity of existing institutional approach.

• International Journal of Computer Science & Network Security
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• v.24 no.5
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• pp.21-32
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• 2024

This study analyzes the global literature on the black open-access phenomenon from 2011 to 2023. A bibliometric analysis was conducted using the Scopus database. The search strategy employed advanced queries with multiple synonymous terms to ensure exhaustive retrieval of relevant documents. The VOSviewer software was employed to visualize the co-occurrence networks. The findings reported 90 papers published during the study period. An evolving scholarly landscape was revealed, with heightened attention from 2016 onwards, peaking in 2017, 2021, and 2023. Articles constitute 83.3% of the total published documents. Singh and Srichandan are prolific authors, with 11.2% of the total publications. The United States contributes 18.9% of the papers, followed by India and Spain. Information Development and Scientometrics are pivotal journals in scholarly discussions about this scope, contributing 4.4% of publications. Co-occurrence network visualization revealed "Sci-Hub" and "open access" as the most used keywords in the global literature. The findings underscore the need for additional research to discover innovative business models to safeguard intellectual property rights while meeting researchers' evolving needs. The importance of this paper comes from being the first bibliometric study analyzing international literature related to this phenomenon, which provides a basis for future research efforts and policymaking.

• Nuclear Engineering and Technology
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• v.56 no.8
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• pp.3298-3306
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• 2024

Our research seeks to assess the influence of nuclear energy technology on carbon emissions in the top 10 European economies comprising the topmost nuclear energy R&D budget (France, Germany, Russia, the Netherlands, the UK, Finland, Spain, Sweden, Italy, and Switzerland). Unlike prior investigations predominantly relying on panel data methodologies without considering the distinctive characteristics of each economy, our study employs the advanced 'Quantile-on-Quantile' approach. This novel methodology enables us to investigate the interactions between variables within each unique nation, thereby improving the precision of our analysis. As a result, the study provides a thorough global perspective, revealing nuanced findings pertinent to each economy's specific attributes. Our outcomes demonSstrate a positive interconnection between nuclear energy technology and carbon emissions across various quantiles in our analyzed nations. Additionally, the study highlights diverse patterns in these associations within individual economies. These findings emphasize the significance of policymakers performing comprehensive measurements and devising effective strategies to monitor fluctuations in nuclear energy technology and carbon emissions.

• Journal of Home Health Care Nursing
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• v.1
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• pp.71-76
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• 1993

This study was carried out to investigate agreement, content and demand for home nursing care of hospital inpatients in brain, spain and musculoskeletal diseases. The data was collected by interviewing with 242 patients who were hospitalized in university hospital on Taegu, from September 6,60 October 9, 1993. Of 242 patients, 66.1% agreed to home nursing care system and rate of agreement was highest between 30 years to 49 years of age as 40.4% in general characteristics. The rate of agreement according to type of diagnosis was highest inpatients with spinal diseases as 75.6% according to functional status was the highest in patients who had daily living activity freely as 69.4% according to prognosis in patients at terminal stage as 80.0% and the rate of agreement to home nursing care of patients who wanted early discharge was 73.9% The first-ranking reasons of agreement to home nursing care was asking for continuous relationship with doctor as 37.3% and there was statistically significant difference in reasons of agreement to home nursing care according to functional status of patients. The first-ranking reason of early discharge among patients who wanted early discharge(74.8%) was because of long time stay in hospital. Among 23 items of nursing activity that patient wanted, the first-ranking item was recovery promotion, prevention of complication, education and counseling for health as 76.4%, drug management was 2nd-ranking item as 62.1% and the third was regular checking of vital signs as 55.9%, The lowest item of demand for home nursing care was hospice care(3.9%) and airway keep(9.1%).

• Journal of the Korean Geographical Society
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• v.47 no.3
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• pp.315-327
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• 2012

Red saprolites are appeared in granitic hills in Yeongam, Southern Korean Peninsula. These red saprolites were analyzed for their geochemistry, including CIA, A-CN-K and A-CNK-FM ternary plots, to understand the chemical weathering trend and rubefaction of the saprolites. These saprolites were compared with laterite profiles in Cameroon formed under humid tropical conditions. The red saprolites in Yeongam show commonly massive loss of CaO, $Na_2O$, but $K_2O$ is being slow. The red saprolites in Yeongam relative to laterite and kaolinite profiles of Cameroon and Spain show weak chemical alteration owing to slow removal of $K_2O$, but high mafic constituents, $Fe_2O_3$ and MgO, for most of the samples. In the saprolites of Yeongam, mafic oxides become enriched because of the fast and massive removal of alkali constituents, such as CaO, $Na_2O$ and $K_2O$, relative to other elements, resulting in rubefaction of the saprolites. It is found that the rubefaction of the saprolites is not necessarily proportional to chemical weathering intensity.

• Proceedings of the KSR Conference
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• 2011.05a
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• pp.140-144
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• 2011

As a result of that the domestic railway technology has been progressed as times go by, the 1st and the 2nd steps for Gyeongbu HSR at the speed of more than 300km/h, were completed and Honam HSR - its operational speed is 350km/h - is under construction. Additionally, As a part of the expressization project for general lines, the Seoul-Chuncheon route at the speed of more than 180[km/h] is under construction and the Jeolla route is under design. At present, 11 countries (e.g. France, Germany, Belgium, Italy, the Netherlands, Spain, England, Japan, China and Taiwan) including Korea have high speed railways operated at the speed of more than 300[km/h]. As shown in the above, the domestic railway has high speed trains as good as those of countries outside Korea, but the schedule speed, which is calculated by dividing distance to destination by time, is lower than that of overseas trains. For overseas railway, the ratio of schedule speed to the highest speed is above 65%, while that of domestic railways is over 50%. It shows a significant difference between them. It is expected that the schedule speed improvement will increase the number of train operation and line capacities than now, so it shall achieve smooth transportation flow and improve the passengers' satisfaction. In this paper we describe the necessity for the improvement of schedule speed, by analyzing foreign cases related to the improvement of schedule speed in order to satisfy the increasing traffic demand.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.37 no.6
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• pp.473-479
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• 2019

This study applied SGM (Semi Global Matching) to generate DSM (Digital Surface Model) using WorldView-1 high-resolution satellite stereo pair in Terrassa, Spain provided by ISPRS (International Society for Photogrammetry and Remote Sensing). The SGM is an image matching algorithm that performs the computation of the matching cost for the stereo pair in multi-paths and aggregates the computed costs sequentially. This method finally calculates the disparity corresponding to the minimum (or maximum) value of the aggregation cost. The cost was applied to MI (Mutual Information), NCC (Normalized Cross-Correlation), and CT (Census Transform) in order to the SGM. The accuracy and performance of the outline representation result in DSM by each cost are presented. Based on the images used and the subject area, the accuracy of the CT cost results was the highest, and the outline representation was also most clearly depicted. In addition, while the SGM method represented more detailed outlines than the existing software, many errors occurred in the water area.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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• v.18 no.2_spc
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• pp.275-289
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• 2020

In 2017, multimodal transportation tests for evaluating road, sea, and rail transport were performed by research institutes in the US, Spain, and the Republic of Korea. In this study, acceleration and strain data determined through road and sea tests were analyzed. It was investigated whether the load generated for each transport mode was amplified or attenuated according to the load transfer path. From the results, it was confirmed that the load transfer characteristics differed according to the transportation mode and loading path. The effects of strain determined through each test on the structural integrity of the spent nuclear fuel were also investigated. It was found that the magnitude of the measured strain had a negligible effect on the structural integrity of the spent nuclear fuel, considering its fatigue strength. The results for the acceleration and strain data analyses obtained in this study will be useful for scheduled domestic transportation tests under normal transport conditions.